AbstractIn this article, we highlight a partnership between CommuniVax and a human‐centered design firm (Bridgeable) that resulted in CommuniVaxCHAT—an online toolkit capable of engaging community members and translating their experiences and local knowledge in a way that decision‐makers, including mayors and public health directors, can act upon. In addition to considering the process involved in creating CommuniVaxCHAT, and its associate practicalities, we examine how human‐centered design, and more particularly personas and journeys, can act as boundary objects to facilitate engagement between groups and create interventions or policy. In this way, we argue that HCD can be used similarly to PhotoVoice as a tool to introduce ethnographic insights into applied and participatory contexts.